<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/109864>109864</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [clang-format] Include sorting is broken with backslashes in multiline comments.
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          Jhuighuy
      </td>
    </tr>
</table>

<pre>
    Hi everyone, 

The latest released `clang-format` (19.1.0) cannot sort includes and remove duplicates if those are preceded with `/* */` comments containing backslashes. `clang-format` 18 produces correct results.

Example:
```cpp
~ » cat a.cpp
/* COPYRIGHT *\
\* (C) 2024  */

#include <b>
#include <a>
#include <b>

~ » clang-format a.cpp
/* COPYRIGHT *\
\* (C) 2024  */

#include <b>
#include <a>
#include <b>

~/cf-test » cat b.cpp
/* COPYRIGHT *
 * (C) 2024  */

#include <b>
#include <a>
#include <b>

~/cf-test » clang-format b.cpp
/* COPYRIGHT *
 * (C) 2024  */

#include <a>
#include <b>
```
</pre>
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